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參數資料
| 型號： | HA13614 |
| 廠商： | Hitachi,Ltd. |
| 英文描述： | Combo (Spindle & VCM) Driver |
| 中文描述： | 組合（主軸 |
| 文件頁數： | 17/26頁 |
| 文件大小： | 122K |
| 代理商： | HA13614 |
HA13614FH
17
Notes: 1. The operation threshold voltage of Vps or Vdd is determined by resistor R101, R102 or R107,
R108 as follows.
12VGOOD
(for Vps)
POR
(for Vdd)
Vdwn
Vup
Vps
for Vps
Recovery
voltage
R101
R102
Vup(Vps) = (Vsd1 + Vhys3)
1 +
[V]
(1)
R101
R102
Vdwn(Vps) = Vsd1
1 +
[V]
Cut off
voltage
(2)
where, Vsd1 : Operating voltage of the power monitor [V] (refer to Electrical Charasteristics)
Vhys3 : Hysteresis voltage of the power monitor [V] (refer to Electrical Charasteristics)
for Vdd
R107
R108
voltage
Vup(Vdd) = (Vsd1 + Vhys4)
1 +
[V]
Recovery
(1)’
R107
R108
Vdwn(Vdd) = Vsd1
1 +
[V]
Cut off
voltage
(2)’
where, Vhys4 : Hysteresis voltage of the power monitor [V] (refer to Electrical Charasteristics)
2. The relation between PWMDAC input VIPWMH, VIPWML for VCM driver current control and VCM
driver input (VCMIN – VREF) is determined by following equation. (refer to below figure)
6500
VCMIN
VREF = 6.4
(64
DPWMH + DPWML)
3.2
(3)
where, VREF
: Internal reference voltage [V] (refer to Electrical Charasteristics)
: Duty of input signal on terminal VIPWMH [%]
: Duty of input signal on terminal VIPWML [%]
DPWMH
DPWML
VREF
VREF
5.3V
R0
VIPWMH
VIPWML
DACOUT
R1L
+
C1
VCMIN
to VCM driver
VREF
5.3V
5.3
±
3.2V
R1H
R2
C2
R3
R4
C3
OP2IN(+)
OPAmp.2
GND
OP2OUT
VCMIN
R5
R5/R4=0.604
R1=R1L//R1H//R0
=740
3. The 3rd order LPF at next stage of PWMDAC is characterized by internal OP amp. and capacitor
C1, C2, C3 and resistor R2, R3. These components value are determined by following equations.
1
2
π
fc
R1
C1 =
[F]
(4)
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相關代理商/技術參數 |
參數描述 |
|---|---|
| HA13614FH | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Combo (Spindle & VCM) Driver |
| HA13631T | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:CD-ROM Combo Driver |
| HA-1370 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:CMOS Compatible Enable/Disable |
| HA13702A | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Single Peripheral Driver |
| HA13703A | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Single Peripheral Driver |
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